<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<input type="checkbox" id="test"  name="xfz" />
	</body>
	<script type="text/javascript">
		var testNode  =document.querySelector("#test");

		//操作节点的property 不会同步 attribute
        testNode.checked = true
	</script>
</html>
